Stop-cock.



III. M. HOELSGHR & J. H. GAVIN.

STOP 000K. APPLIoATIoN rILBp MAB, a, 1904.

Patented Feb. 16, 1.909.

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*UNITED STATES PATENT `FFIOE.

IIERMAN M. HOELSCHER AND JOHN H. GAVIN, OF CHICAGO, ILLINOIS, ASSIGNORS TO L. WOLFF MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STOP-COCK.

Application filed March 3, 1964.

Specification of Letters Patent.

Patented Feb. 16, 1909.

Serial No. 196,425.

l cap stop cocks.

The obj ect of our invention is to provide a cap stop cock of a simple, strong, efficient and durable construction which will entirely exclude sand and dirt from the valve and which may be used either as a right or left hand device.

Our invention consists in the novel construction oi parts and `devices and in the novel combinations oi' parts and devices herein shown and described and specified in the claim.

In the accompanying drawing forming a part of this specification, Figure 1 is a side elevation of a cap stop cock embodying our Fig. 2 is a central vertical section. Figs. 3, 4 and 5 are horizontal sections on lines 3-3, 4 4 and 5 5 respectively oi Fig. 1. Fig. 6 is a detail plan or top view of the valve or plug. Fig. 7 is a side elevation ol the plug and Fig. 8 is a detail sectional view of the cap. Fig. 9 is a perspective view ol' the cap partly in section.

In the drawing, A represents the valve shell or casing having the usual threaded hubs A1 and A2 to connect with the water 40 or extensions A3 and A4 to afford a proper seat for the taper plug or valve B. The upper boss or extension A4 is furnished with a circular rim a2 which is provided with two upright7 segmental flanges c3, a4, the extremities of which i'orm l'our stops or shoulders a5, a6, a7 and as which coperate with internal shoulders or projections d, d1 on the cap D to limit the rotary movement of the cap to a quarter turn.

The taper plug B has a port or water passage l) through the same adapted to register with the water way or passage a of the casing when the handle oi the plug is turned lengthwise of the casing. The taper plug B also has a small port or passage way b1 to permit the water in the pipes of the building to drain out through the same and through the waste passage al ol' the shell or casing. The plug B is further provided with a circular rim Z22 adapted to iit and turn within the upright segmental flanges a3, a4 on the rim c2 ci the shell or casing A, The rim b2 is provided with four notches b3, b4, b5 and b adapted to receive the internal lugs or projections d, d1 on the cap D, and thus cause the plug to turn with the cap, the rotary movement of the plug being thus limited by the stops on the shell or casing which limit the rotary movement ol' the cap.

rlhe cap D has a circular rim d2 which lits over and embraces the circular rim a2 oi the casing or shell A so as to eectually exclude sand and dirt from the valve. The upper part d3 of the cap lits the cylindrical extension 717 of the plug B.

F is the handle by which the valve is turned, the same having a square or noncircular shank f adapted to iit within the square or non-circular socket 58 in the plug B, and to pass through a similar opening d4 in the top or" the cap D. rlhe handle F is further provided with a shoulder f1 to better close the opening d* in the top of the cap D. The handle is secured in place by a set screw G which is inserted through a hole (Z5 in the cap D and enters a screw thread hole b in the plug B, and engages a notch f2 in the shank of the handle. The plug B is secured in the shell or casing A by a washer H and threaded nut H1. The plug B is provided with two threaded holes b9 radially a quadrant apart, so that when it is desired to change the stop. cock from a right hand one to a left hand one, all that is required to be done, is to remove the cap D and handle F and turn them one quarter around and then replace them the cap D now having its set screw hole d5 registering with the other threaded hole 5; and then the handle being again inserted and secured in position by the set screw which now engages the duplicate notch f 2 on the adjacent corner of the shank of the handle the stop cock is ready for operation as a lett hand one instead oi' a right.

I As the square or non-circular shank of the handle passes through and engages a square or nonecircular hole in the cap and lits in a square or non-circular socket in the plug, the handle shank itself thus causes the cap and plug to turn together when the handle is in place.

We hereby disclaim as not oi our invention the constructions shown and described in the United. States patent to Trahern, No. 669,815, and in the British patent to Haddan, No. 12,412 of May 19, 1897, and in the Austrian patent to Brndl, N o. 1922 of 1900,

We claim In a stop cock, the combination of a shell having a plug seat and a top rim, flanges of quadrant form on said rirn extending inward from the outer boundary of the rini and terminating at points about half Way to the interior boundary of the rirn, the said quadrant flanges being arran 'ed diametrically opposite to each other, the p ug having a handle opening and itted Within the shell and having a rim which fits concentrically Within the said quadrant flanges of the shell, the plug riln being formed With flourm diametrically ar-V ranged notches, and a cap inclosing the rim of the shell and formed on its under side With radial projections which extendV ast both the quadrant flanges and the rim o the Y HERMAN M. HoELsoHna.

JOHN H. Gavin.v s

l/Vitnesses H. M. MUNDAY, P. ABRAMs. 

